This Jewellery Set (SGS10007TZ) is made with Solid .925 Sterling Silver (925/1000) and Crystals embellished in this Jewelry Set is 100% Genuine Swarovski Tanzanite. Crystal Size is 4mm x 4mm Round and total Dimensions are - Pendant: 1.64x1.08cm, Earrings: 0.66x0.66cm